<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    #grid {
      display: grid;
      grid-template-rows: 2em 2em;
      grid-template-columns: repeat(6, 4em);
      background-color: antiquewhite;
    }

    /* .one {
      grid-column: 4 / 5;
      grid-row: 1 / 7;
      background-color: aqua;
    }

    .two {
      grid-column: span 2 / -3;
      grid-row: 2 / 4;
      background-color: aquamarine;
    }

    .three {
      grid-column: 1 / 2;
      grid-row: 1 / 6;
      background-color: skyblue;
    }

    .four {
      grid-column: -1;
      grid-row: -1;
      background-color: deeppink;
    } */
    .one {
      grid-column: 1;
      grid-row: 1 / 4;
      background-color: aliceblue;
    }
    .two {
      grid-column: 2;
      grid-row: 3 / span 2;
      background-color: aliceblue;
    }
    .three {
      grid-column: 3;
      grid-row: span 2 / 3;
      background-color: aliceblue;
    }
    .four {
      grid-column: 4;
      grid-row: span 4 / 5;
      background-color: aliceblue;
    }
  </style>
</head>
<body>
  <div id="grid">
    <div class="one">aaa</div>
    <div class="two">bbb</div>
    <div class="three">ccc</div>
    <div class="four">ddd</div>
  </div>
</body>
</html>